<template>
  <div class="swiper-container" ref="cur">
    <div class="swiper-wrapper">
      <div class="swiper-slide" v-for="(value, index) in skuImageList" :key="value.id">
        <img :class="{active:t==index}" :src="value.imgUrl" @click="btn(index)" />        
      </div>
    </div>
    <div class="swiper-button-next"></div>
    <div class="swiper-button-prev"></div>
  </div>
</template>

<script>
import Swiper from 'swiper';

export default {
  name: "ImageList",
  data() {
    return {
      t: 0,
    }
  },
  props: ["skuImageList"],
  methods: {
    btn(value) {
      this.t = value;
      this.$bus.$emit("getIndex", value);
    }
  },
  watch: {
    skuImageList() {
      this.$nextTick(() => {
        new Swiper (this.$refs.cur, {

          // 如果需要前进后退按钮
          navigation: {
            nextEl: '.swiper-button-next',
            prevEl: '.swiper-button-prev',
          },
          slidesPerView: 2,
          slidesPerGroup: 1,
        });       
      });
    }
  }
}
</script>

<style scoped>
  .swiper-container {
    height: 56px;
    width: 412px;
    box-sizing: border-box;
    padding: 0 12px;
  }
  .swiper-container .swiper-slide {
    width: 56px;
    height: 56px;
  }
  .swiper-container .swiper-slide img {
    width: 100%;
    height: 100%;
    border: 1px solid #ccc;
    padding: 2px;
    width: 50px;
    height: 50px;
    display: block;
  }
  .swiper-container .swiper-slide .active {
    border: 2px solid #f60;
    padding: 1px;
  }


  .swiper-container .swiper-button-next {
    left: auto;
    right: 0;
  }
  .swiper-container .swiper-button-prev {
    left: 0;
    right: auto;
  }

  .swiper-button-next, .swiper-button-prev {
    box-sizing: border-box;
    width: 12px;
    height: 56px;
    background: rgb(235, 235, 235);
    border: 1px solid rgb(204, 204, 204);
    top: 0;
    margin-top: 0;
  }
  .swiper-button-next::after {
    font-size: 12px;
  }
  .swiper-button-prev::after {
    font-size: 12px;
  }
</style>